Bunch-builder attachment.



1. LYLE. BUNCH BUILDER ATTACHMENT.

APPLICATION FILED MAR. IT. 1916.

Patented Mar} 26, 1918.

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JESSE LYLE, 0F DANVILLE, VIRGINIA, ASSIGNOR OF UNE-THIBD TO SAMUEL S.EPPER- SON AND ONE-THIRD T0 H. L. IPBI'ECHET'I, BOTH 0F DANVILLE,VIRGINIA.

BUNCH-BUILDER ATTACHMENT.

aet tia.

Specification of Letters Patent.

Patented Mar. 26, 1918.

Application filed March 17, 1916. Serial No. 84,927.

To all whom it may concern:

Be it known that I, dress LYLE, a citizen of the United States, residingat Danville, in the county of Pittsylvania and State of Virginia, haveinvented certain new and useful Improvements in Bunch-BuilderAttachments, of which the following is a specification. p

This invention relates to improvements in bunch building attachments forspinning machines, and more particularly to the type disclosed in myPatent No. l,lt9,930,'dated August 10, 1915.

The object in view is the provision for a more 'efi ective variationthan heretofore secured in the length of traverse when changing from thebunch building traverse to the regular, normal traverse.

A further object is the attaining of the first mentioned object by aminimum amount of mechanical alterations of the structure set forth inmy above identified patent.

With these and further objects in view, as will in part hereinafter bestated and in part become apparent, the invention comprises certainnovel constructions, combinations and arrangements of parts assubsequently specified and claimed.

In the accompanying drawing Figure 1 is a fragmentary side elevation ofa part of a spinning machine embodying the features of the presentinvention.

Fig. 2 is an enlarged detail sectional elevation taken on the planeindicated by line 2, 2, of Fig. 1 and looking in the direction indicatedby the arrow.

Fig. 3 is an enlarged detail fragmentary side elevation of the whirl andparts of its chains deflected during the building of a bunch.

Fig. 4 is a similar view of the same with the parts in the position whenthe bunch is substantially completed and the full traverse is permitted.

Fig. 5 is an edge view of a whirl with the chains omitted.

Referring to the drawing by numerals, 1 indicates an ordinary spinningframe, having the usualsupporting bars 2, 2, brackets 3, rock shaft 4:journaled therein, and rocker lever 5 carried by the rock shaft andprovided with a counter balance weight 6 and the usual stroke stand 7which may be connected by a link 8 to a like stroke stand a swinginglever 13, counter balanced at 13,

and actuated by a cam or other appropriate gear, not illustrated. Lever13 is of usual form and bears a rotatably mounted screw shaft 14, onwhich is threaded a traveling block 15. One end portion of screw 14: isengaged by the regular left-od mechanism of the builder motion,consisting of a ratchet wheel 16 engaged by pawl 17, carried by theusual lever- 18 pivoted to the outer end of shaft 14 and having apivotal connection at 19 to the frame of the machine, so that as thelever 13 is successively swung up and down, the pawl 17 will impartsuccessive steps of rotation to the shaft 14, and thereby feed the block15 along the lever 13. This provides for the regular gain as will beapparent. The said block is engaged by a chain 20, which extendslongitudinally of lever 13 and engages a whirl 21, journaled on thelever 13. A chain 20 is fixed to whirl 21 and extends upward therefromand is connected to the usual whirl 22, journaled in the bracket 23, andin turn having its smaller cam or disk engaged by a chain 24 whichextends'to and is connected with the stroke stand 7, it being understoodthat the chain 20 engages the larger disk or cam of whirl 22, whereby inthe ordinary operation of the structure described thus far, thesuccessive strokes of the lever 13 will impart corresponding strokes tothe lifting rod 10 and thence to the ring rail 11, whereby the requisitetrav erse is aflorded, while at the same time, the successive steps inthe let-off of chain 20 due to the movement of block 15 along shaft 1aincident to the step by step rotation of ratchet wheel 16, enables thestroke stand 7 to have successive gains which provides for the usualgain of the ring rail, whereby the ordinary form of winding for theseveral bobbins is provided, the traverse and gain being maintaineduniform throughout the building of the bobbin. H The automatic loo-ms,however, as is now 7 well known, are provided with feeler mechanism foractuating the bobbin ejecting and new bobbin supplying mechanism, andthis vfeeler mechanism depends on ltS operation "for the presence of abunch substantially,

bunch, and various attempts have been made to provide mechanism whichwill produce a bunch, with more or less success, as, for example, thearrangement seen in my above identified patent. The present invention,however, provides a simple and more eflicient means to this end.

The whirl 21 consists of two preferably integral peripheral grooveddisks 21 and 21, the former being of smaller diameter than the latter,and the chain 20 being wrapped part way about and fixed to the peripheryof the disk 21 while the chain 20 is wrapped part way about and fixed tothe periphery of the disk 21 When the parts are in position forproducing the full traverse for the ring rail, the chain 20 will extendon a straight line upward from the "periphery of disk 21, but at thebeginning of each operation, before the parts reach this position,provision is made for deflectfingthe chain 20, so as to take up aportion of the length of the chain and thus proportionally reduce thelength of the stroke of the stand 7 and correspondingly take up thegain. To this end a lug 2 1 isformed integralwithor otherwise fixed tothe periphery "of the disk 21 and outstands at a tangent l tosuch'periphery. This lug upstands parallel to the chain 20 and does notinterfere with or operatively engage the chain 20 except when the whirl21 is oscillated, and

the whirl is'not oscillated during the full traverse of the ring rail.At the beginning of the spinning operation, however, when it isdesirable to have a very short traverse for the purpose of building afeeler bunch,

the chain 20 in advance of its let-off movement incident to rotation ofshaft, 14.

To this end, a tubularrod 25 is pivoted to -a part of the frame-work, asfor instance, to one of the bars 2 in position to'depend toward thebuilder motion, and telescoped within rod 25 is a rod .26 whose lowerend is pivotally connected to the chain 20 as by the pin fixed to thechain and passed 7 through an, eye 26 formed at the lower end of the rod26. The, upper or tubular rod may be pivotally mounted in'anyappropriatemanner as by a pivot" pin passed through an eye 25 at the upper end ofthe rod. The rod 25 is closed at its upper end, and arranged within thebore of rod 25 is a controlling section of rod 27, which is located tolimit the inward thrust of rod 26 axially of rod 25. 'To vary thedistance of this t-hrustfthe section 27 'is provided with an axiallyarranged screw .28 adapted to be locked by a radial screw 29. By settingthe screw28 at any given point of longitudinal adjustment, the abuttingof the inner or upper end of rod 26 against the head of the screw 28when the section 27 has its upper end resting against the closed end ofrod 25, will positively limit the extent of inward or upward thrustofrod 26. r s

In operation, when the block-15 is at its rearmost position and the ringrail 11 is starting its first stroke, the rod 26 will begiven an upwardthrust an WiVHm'OVB with in rod 25 until the control section27 strikesthe closed upper endof rod 25,- or the equivalent of section 27strikesthispart,;and

thereupon, the rod QG'VVlll enter no far- 20 and detract from" the fulleffective move V V ment which would otherwise bedelivered through chain.20. ;As explained inmy above identified patent, the deflecting of thechain 20 in itself would be sufiicientfor producing a curtailment in themovement of'the stroke stand Tsuificient for theibuilch ;ing of a,feeler bunch, but, I'findf that the gain is not fully taken care of vbyth'e defiection of chain 20,,and I have accordingly provided the lug2lf,which does effectively take up the gain at ,the beginningof theoperation and then gradually allows the gain to be felt at the ringrail. The ring rail-11 by the action of deflecting the chain 20 throughthe action of the rod 26" is given only a relatively'shorttrayerse'inthe same length of time which would ordinarily berequired to make the full traverse. The" resultis' that the yarn whichwould ordinarily be delivered for a" full strokeof the ring rail, isdelivered in a bunch, and it requires only two or three" of; such"abbreviated strokes to develop the required'feeler bunch. V

It is to be observed that the pivotof rod 25 is so located that as theblock progresses.

along the shaft 14, and the chain correeye 26 moves away from the axialplane of the pivot of rod 25 so that after the first few strokes of thebuilder motion (enough to complete the required feeler bunch) the pivotengaging eye 26 will have moved sufiicientl away from the axial plane ofthe pivot of rod 25 as to allow rod 25 and rod 26 to swing vertically toan extentpermitting the chain 20 to remain straight, and whirl 21 willhave moved angularly a distance sufiicient to place lug 21 entirely outof range of engagement with chain 20. Be-

sides this, the whirl 21 ceases to oscillate as soon as chain20 ceasesto be deflected. The movement imparted by the chain 20 thus becomes andremains normal, and the traverse of the ring rail 11 accordingly becomesfull and remains the same throughout the balance of the winding of thebobbins. The gain is, of course, proportionately affected since duringthe retardation incident to the deflection of chain 20 by rods 25 and26, the effect of the operation of the let-ofi mechanism is practicallynullified, and the bunch is built substantially without gain, whereas,as soon as the pivot of rod 26 moves to the position allowing the fulloperation of the builder motion, the gain becomes constant just the sameas the traverse becomes constant.

It will be observed that in the course of operation of the structuredescribed, the letoff caused by the movement of the block 15 andnormally intended to provide for the regular gain will be taken upwholly at first by thethrust'of the lug 21 deflecting the chain 20 butas the successive strokes of lever 13 causes the block 15 to progressdown the shaft 14, the let-off of the chain 20 allows the whirl 21 toadvance angularly in addition to its oscillating amount and, therefore,the lug 21 is gradually shifted away from the chain 20 while at the sametime the actual amount of oscillation of whirl 21 is decreasing incidentto the decrease in the amount of deflection of chain 20 throughout thesuccessive strokes of lever 13 down to the point of no deflection. Theresult of this is that the action of the lug 21 is to first take up allof the gain and then to gradually allow the gain to be felt at the ringrail, so that the feeler bunch begins with a short traverse and no gain,and continues with a short traverse and a very slight gain and thengradually as it works into its full traverse also works into a full gainso that a feeler bunch is built which 1s destined to prevent sloughingofi of the yarn as the bobbin approaches an exhausted condition which isan extremely desirable and advantageous condition as it provides for theavoidance of loss by waste incident to a loosening of the yarn causingtoo abrupt building on a feeler bunch as has heretofore occurred.

What I claim is 1. The combination, with a spinning machine buildermotion, of means for restricting the extent of effective movement of theinitial strokes of the builder motion, and a whirl oscillated by saidmeans and provided with means for taking up gain.

2. The combination, with a spinning machine builder motion, of aswinging rod and a rod telescoping therewith and connected with aportion of the builder motion for restricting the extent of efiectivemovement of the initial strokes of the builder motion, and a whirlhaving a projection adapted to be oscillated incident to suchrestricting action for taking up gain.

3. The combination, with a spinning machine builder motion, of aswinging rod and a rod telescoping therewith and connected with thelet-off chain of the builder motion for restricting the extent ofeffective movement of the initial strokes of a builder motion, and meansactuated by the chain incident to such restriction for taking up gain.

e. The combination, with a spinning machine builder motion, of aswinging rod and a rod telescoping therewith and connected with thelet-ofi chain of the builder motion for restricting the extent ofeffective movement of the initial strokes of the builder 'motion, and awhirl engaged by the chain chine builder motion, of a swinging rod and arod telescoping therewith and connected with the let-oif chain of thebuilder motion for restricting the extent of efiective movement of theinitial strokes of the builder motion for shortening the traverse, thebuilder motion having a stroke stand actuating the chain, and a whirlengaged by both of the chains and adapted to be oscillated by the formerincident to such restriction, the said whirl having a projectiondisposed for engaging the second mentioned chain during the initialbunch building strokes of the builder motion for taking up gain.

6. The combination, with a spinning machine builder motion, of aswinging rod and a rod telescoping therewith and connected with thelet-oft chain of the builder motion for restricting the extent ofefi'ectiv'e movement of the initial strokes of the builder motion forshortening the traverse, the builder motion having a stroke standactuating the chain, and a whirl engaged by both of the chains andadapted to be oscillated by the former incident to such restriction, thesaid whirl having a projection disposed for engaging the secondmentioned chain during the initial bunch building strokes of the buildermotion for taking up gain, the said projection extending substantiallyata tangent to the periphery of the whirl and adapted to outstandtherefrom free from the second mentioned chain at the conclusion of theinitial strokes.

7. The combination with a spinning machine frame, a builder'motionthereforincluding means for causing a variable gain and means operableto counteract the lastcluding means causing variable gain incidentcooperation of the builder motion, ineanscartried by the builder motionfor taking up gain during the initial bunch building strokes,

of means supported by the frame and operably connected to the buildermotion for restricting the extent of effective movement of the buildermotion during the initial bunch building strokes to thereby cause a stepby step shifting of the gain taking up 'means to progressively renderthe latter less efiective.

9. The combination with a spinning machine frame, a builder motiontherefor including means for causing variable gain incident tooperation, of the motion comprising a flexible connection, a device towhich the flexible connection is attached having deflecting means fordeflecting said connection to take up the gain during the initialstrokes of the motion, of a second chine frame,'a builder motionthereforin eluding 'means for causing variable gain incident to operation of themotion, a device for taking up'gain during the initial bunch buildingstrokes, of adjustable meansswingingly connected at one: end to theframe and operably connected to the builder motion at its other end torender said motion taking up means less effective, said last mentionedmeans being rendered inoperative incident to the operation of the meansfor causing-variable gain whereby to render the gain taking up meansinoperative;

11. The combination with a spinning ma chine frame, a builder motiontherefor including a let-ofi' chain andmeans internnt tently operatedfor letting off said chain to produce a variable gain, a whirl fortaking up gain during the initial bunch building strokes, and a swingingmember'connected to the frame. at one end and'to the letof'f 7 chain atits other end for deflecting the letofl chain to thereby variablyactuate the whirl to render its deflecting means less eifec-tive as theoperation of the" builder motion continues. V

In testimony whereof I affix my signature.

v his JESSE LYLE. 'maik Witnesses: v

' S. S. Erriin'son, G. G.. TEMPLE.

Copies of] this patent may be obtained for five cents each, byaddressing the Commissioner of Patenti, Washington, D. G. c. a 7 V

